SENSOR FOR USE IN POWER-ASSISTED MOBILE OBJECT, POWER-ASSISTED UNIT, POWER-ASSISTED MOBILE OBJECT, AND TORQUE DETECTION METHOD

SENSOR FOR USE IN POWER-ASSISTED MOBILE OBJECT, POWER-ASSISTED UNIT, POWER-ASSISTED MOBILE OBJECT, AND TORQUE DETECTION METHOD

A highly-responsive sensor for use in a power-assisted mobile object. The sensor for use in power-assisted mobile object includes: ring-shaped first and second magnets each having a north pole and a south pole along a circumferential direction, having a ring shape, and disposed so as to rotate with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKAMA Akira, YOSHIIE Akihito, NISHIKAWA Masafumi, YAMAGUCHI Katsuhiro
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CYCLES
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PERFORMING OPERATIONS
PHYSICS
POWERED PROPULSION OF SLEDGES OR
RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES
TESTING
TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
TRANSPORTING
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Beschreibung
Zusammenfassung:A highly-responsive sensor for use in a power-assisted mobile object. The sensor for use in power-assisted mobile object includes: ring-shaped first and second magnets each having a north pole and a south pole along a circumferential direction, having a ring shape, and disposed so as to rotate with rotation of a drive shaft coaxially with each other; at least a pair of first hall elements and a pair of second hall elements that detect a magnetic field of the first magnet and the second magnet, respectively, and is disposed at a distance from each other in the circumferential direction; and a distortion unit that is configured to get distorted in the circumferential direction due to torque during rotation of the drive shaft and disposed such that the distortion changes relative positions of the first magnet and the second magnet in the circumferential direction.